Home / 187,140.97-280,911.22-80,577.67

Finding the Fourth Proportional to 187,140.97, 280,911.22 and 80,577.67

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Solution

The fourth proportional to 187,140.97, 280,911.22 and 80,577.67 is: 120,952.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,140.97 : 280,911.22 = 80,577.67 : x
  2. Step 2: Convert to fraction form
    187,140.97/280,911.22 = 80,577.67/x
  3. Step 3: Cross multiply
    187,140.97x = 280,911.22 × 80,577.67
  4. Step 4: Simplify right side
    187,140.97x = 22,635,171,584.46
  5. Step 5: Solve for x
    x = 22,635,171,584.46/187,140.97
  6. Step 6: Final answer
    x = 120,952.52

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.